foo.cc: In function ‘int FindMaxNeg(int*, int)’:
foo.cc:19:13: warning: ‘max’ may be used uninitialized [-Wmaybe-uninitialized]
   19 |             if(a[i]>max){
      |             ^~
foo.cc:9:9: note: ‘max’ was declared here
    9 |     int max;
      |         ^~~